diff --git a/terraform/examples/io500/config/config.sh b/terraform/examples/io500/config/config.sh
index 775e618..9793e09 100644
--- a/terraform/examples/io500/config/config.sh
+++ b/terraform/examples/io500/config/config.sh
@@ -28,7 +28,7 @@ DAOS_CLIENT_INSTANCE_COUNT="1"
 DAOS_CLIENT_MACHINE_TYPE=c2-standard-16 # c2-standard-16 n2-standard-2
 
 # Storage
-DAOS_POOL_SIZE="$(( 375 * ${DAOS_SERVER_DISK_COUNT} * ${DAOS_SERVER_INSTANCE_COUNT} / 1000 ))TB"
+DAOS_POOL_SIZE="$(awk -v disk_count=${DAOS_SERVER_DISK_COUNT} -v server_count=${DAOS_SERVER_INSTANCE_COUNT} 'BEGIN {pool_size = 375 * disk_count * server_count / 1000; print pool_size"TB"}')"
 DAOS_CONT_REPLICATION_FACTOR="rf:0"
 
 # IO500
diff --git a/terraform/examples/io500/config/config_1c_1s_8d.sh b/terraform/examples/io500/config/config_1c_1s_8d.sh
index b09d7d7..9c8cc38 100644
--- a/terraform/examples/io500/config/config_1c_1s_8d.sh
+++ b/terraform/examples/io500/config/config_1c_1s_8d.sh
@@ -28,7 +28,7 @@ DAOS_CLIENT_INSTANCE_COUNT="1"
 DAOS_CLIENT_MACHINE_TYPE=c2-standard-16
 
 # Storage
-DAOS_POOL_SIZE="$(( 375 * ${DAOS_SERVER_DISK_COUNT} * ${DAOS_SERVER_INSTANCE_COUNT} / 1000 ))TB"
+DAOS_POOL_SIZE="$(awk -v disk_count=${DAOS_SERVER_DISK_COUNT} -v server_count=${DAOS_SERVER_INSTANCE_COUNT} 'BEGIN {pool_size = 375 * disk_count * server_count / 1000; print pool_size"TB"}')"
 DAOS_CONT_REPLICATION_FACTOR="rf:0"
 
 # IO500
diff --git a/terraform/examples/io500/config/config_2c_2s_16d.sh b/terraform/examples/io500/config/config_2c_2s_16d.sh
index 1e4614b..3723115 100644
--- a/terraform/examples/io500/config/config_2c_2s_16d.sh
+++ b/terraform/examples/io500/config/config_2c_2s_16d.sh
@@ -28,7 +28,7 @@ DAOS_CLIENT_INSTANCE_COUNT="2"
 DAOS_CLIENT_MACHINE_TYPE=c2-standard-16
 
 # Storage
-DAOS_POOL_SIZE="$(( 375 * ${DAOS_SERVER_DISK_COUNT} * ${DAOS_SERVER_INSTANCE_COUNT} / 1000 ))TB"
+DAOS_POOL_SIZE="$(awk -v disk_count=${DAOS_SERVER_DISK_COUNT} -v server_count=${DAOS_SERVER_INSTANCE_COUNT} 'BEGIN {pool_size = 375 * disk_count * server_count / 1000; print pool_size"TB"}')"
 DAOS_CONT_REPLICATION_FACTOR="rf:0"
 
 # IO500